Study on Environmental Protection of Superfine Calcium Carbonate Burnable PE Masterbatch

3.4 Preliminary Study on Comprehensive Environmental Protection Performance of Calcium Carbonate in Garbage Bags

3.4.1 Save a lot of petroleum resources through filling effect Calcium carbonate is a rich source of inorganic minerals. It comes from nature and can return to nature. It is less harmful to the environment and can reduce the amount of synthetic polyolefins. lowest. And the material composition does not contain heavy metal ions, and its degradation products will not cause pollution to groundwater sources, and is an environmentally friendly green material. In today's increasingly tense energy environment, without changing the performance of plastic products, the calcium carbonate content of the incinerated film can be more than 30%. According to the national annual amount of 3 million tons of plastic packaging, it can save 1 million tons of plastic annually. Material (also 700,000 tons by volume). The energy consumption per volume of inorganic materials is only about 70% of that of plastics. From this point of view, a large amount of inorganic materials filled with plastic is undoubtedly one of the best ways to save energy.

3.42 Reducing atmospheric pollution by incineration of exhaust gases through neutralization

Experts pointed out that more than half of the air in the air calls for emissions from waste incineration. In the waste incineration process, the most easily generated - the phase of the matter is called the initial stage of combustion. Because of the large variety of waste, a large amount of chlorine components are inhabited. At this stage, various hydrocarbons and chlorine-containing substances will react. Produce chlorobenzene (CB) or chlorinated phenol (CP) Exogenous species are recombined into CB and CP species in areas with low temperature near the flue dust collector (250-5000C), C, Cl and other elements, and eventually lead to the production of diterpenoids. Either way, it is due to incomplete combustion of waste in the incinerator. Therefore, how to make the garbage completely and quickly burn completely becomes the key to solving the problem. From the landfill disposal of garbage, polyolefins with high filling rates of calcium carbonate have good photodestructive properties after light irradiation and, even without UV light, can occur under COZ and water etching in the air. The following reaction:

4 Conclusion

(1) The performance of the incinerated PE film can meet the requirements of the national or Fujian local standards.

(2) The incinerated PE film has good photodegradation performance. It can reach the decay period and embrittlement period when exposed to the sun for 7 days and 35 days.

(3) Calcium carbonate, a rich source of environmentally friendly materials, can be used to save energy and reduce costs if it is used in large quantities in shopping bags or garbage bags. It is also extremely suitable for garbage disposal methods that generate electricity from garbage incineration. . Calcium carbonate, with its unique properties, can promote the rapid and complete combustion of plastics, and can reduce the emission of harmful gases in the exhaust gas. In particular, the use of calcium carbonate in combination with the incineration of thermal oxygen degradation agents will be very important to curb the emergence of Erneng. The significance.

(Author/Chen Qinghua Qian Qingrong. Xiao Yuren Institute of Environmental Materials Development, Fujian Normal University)

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